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PO Validator B2B Shopify App: Pricing, Features & First-Adopter Watch

By byKlemmCheckout - OtherLaunched June 8, 2026Free plan
Alert me on first detectionsFollow

Key signals for PO Validator B2B

PO Validator B2B launched on June 8, 2026. Shoplist is watching for its first storefront installs and tracking pricing and listing changes in the meantime. Checked .

Sonar hasn’t detected PO Validator B2B on a store yet. Watching since its Jun 8, 2026 launch.

Free plan
PricingPaid from $4.99/month

Data checked How Shoplist knows

PO Validator B2B on the Shopify App Store

Shoplist reads PO Validator B2B’s App Store listing every day: where it ranks, what merchants say, what it charges and every edit it ships.

Where Shopify ranks PO Validator B2B

Shoplist reads Shopify’s full category listings every day, so a climb or a slip shows up the day it happens.

Sep 3, 2026: #235 in Checkout - OtherSep 4, 2026: #235 in Checkout - OtherSep 5, 2026: #268 in Checkout - OtherSep 6, 2026: #268 in Checkout - OtherSep 7, 2026: #268 in Checkout - OtherSep 8, 2026: #269 in Checkout - OtherSep 9, 2026: #271 in Checkout - OtherSep 10, 2026: #268 in Checkout - OtherSep 11, 2026: #268 in Checkout - OtherSep 12, 2026: #270 in Checkout - OtherSep 13, 2026: #271 in Checkout - OtherSep 14, 2026: #273 in Checkout - OtherSep 15, 2026: #273 in Checkout - OtherSep 17, 2026: #275 in Checkout - OtherSep 19, 2026: #270 in Checkout - OtherSep 20, 2026: #272 in Checkout - OtherSep 21, 2026: #273 in Checkout - OtherSep 22, 2026: #275 in Checkout - OtherSep 23, 2026: #274 in Checkout - OtherSep 24, 2026: #276 in Checkout - OtherSep 25, 2026: #276 in Checkout - OtherSep 26, 2026: #275 in Checkout - OtherSep 27, 2026: #278 in Checkout - OtherSep 28, 2026: #278 in Checkout - OtherSep 29, 2026: #277 in Checkout - OtherSep 30, 2026: #283 in Checkout - OtherOct 1, 2026: #287 in Checkout - OtherOct 2, 2026: #289 in Checkout - OtherOct 3, 2026: #289 in Checkout - OtherOct 4, 2026: #293 in Checkout - OtherOct 5, 2026: #294 in Checkout - OtherOct 6, 2026: #296 in Checkout - OtherOct 7, 2026: #298 in Checkout - OtherOct 8, 2026: #280 in Checkout - OtherOct 9, 2026: #207 in Checkout - OtherOct 10, 2026: #209 in Checkout - OtherOct 11, 2026: #207 in Checkout - OtherOct 12, 2026: #208 in Checkout - OtherOct 13, 2026: #210 in Checkout - OtherOct 14, 2026: #213 in Checkout - OtherOct 15, 2026: #213 in Checkout - OtherOct 16, 2026: #214 in Checkout - OtherOct 17, 2026: #213 in Checkout - OtherOct 18, 2026: #213 in Checkout - OtherOct 19, 2026: #216 in Checkout - OtherOct 20, 2026: #214 in Checkout - OtherOct 21, 2026: #213 in Checkout - OtherOct 22, 2026: #214 in Checkout - OtherOct 23, 2026: #212 in Checkout - OtherOct 24, 2026: #217 in Checkout - OtherOct 25, 2026: #259 in Checkout - OtherOct 31, 2026: #271 in Checkout - OtherNov 1, 2026: #272 in Checkout - OtherNov 2, 2026: #272 in Checkout - OtherNov 4, 2026: #272 in Checkout - OtherNov 5, 2026: #274 in Checkout - OtherNov 6, 2026: #275 in Checkout - OtherNov 7, 2026: #277 in Checkout - OtherNov 8, 2026: #278 in Checkout - Other
Checkout - Other#278 of 43143 places down since Sep 3, 2026
PO Validator B2B: daily Shopify App Store category position
DayCheckout - Other
Sep 3, 2026#235
Sep 4, 2026#235
Sep 5, 2026#268
Sep 6, 2026#268
Sep 7, 2026#268
Sep 8, 2026#269
Sep 9, 2026#271
Sep 10, 2026#268
Sep 11, 2026#268
Sep 12, 2026#270
Sep 13, 2026#271
Sep 14, 2026#273
Sep 15, 2026#273
Sep 17, 2026#275
Sep 19, 2026#270
Sep 20, 2026#272
Sep 21, 2026#273
Sep 22, 2026#275
Sep 23, 2026#274
Sep 24, 2026#276
Sep 25, 2026#276
Sep 26, 2026#275
Sep 27, 2026#278
Sep 28, 2026#278
Sep 29, 2026#277
Sep 30, 2026#283
Oct 1, 2026#287
Oct 2, 2026#289
Oct 3, 2026#289
Oct 4, 2026#293
Oct 5, 2026#294
Oct 6, 2026#296
Oct 7, 2026#298
Oct 8, 2026#280
Oct 9, 2026#207
Oct 10, 2026#209
Oct 11, 2026#207
Oct 12, 2026#208
Oct 13, 2026#210
Oct 14, 2026#213
Oct 15, 2026#213
Oct 16, 2026#214
Oct 17, 2026#213
Oct 18, 2026#213
Oct 19, 2026#216
Oct 20, 2026#214
Oct 21, 2026#213
Oct 22, 2026#214
Oct 23, 2026#212
Oct 24, 2026#217
Oct 25, 2026#259
Oct 31, 2026#271
Nov 1, 2026#272
Nov 2, 2026#272
Nov 4, 2026#272
Nov 5, 2026#274
Nov 6, 2026#275
Nov 7, 2026#277
Nov 8, 2026#278

What PO Validator B2B charges

Free plan available. Every plan on its listing, and every price change Shoplist has caught, so you can see exactly how it packages and prices.

  1. Free

    Free

    • Built-in errors in EN, DE, FR, and ES
    • Required PO field enforced at checkout

  2. Starter

    $4.99/month

    7-day free trial

    • Everything in Free
    • Minimum and maximum length validation
    • Regex patterns for ERP and SAP formats
    • Required prefix rule (e.g. "PO-")

  3. Pro

    $9.99/month

    7-day free trial

    • 24/7 email support
    • Character rules: whitelist, no spaces
    • Custom error messages per language
    • Custom feature requests welcome
    • Everything in Starter

Every edit PO Validator B2B ships to its listing

Titles, prices, screenshots and featured spots, diffed line by line. A competitor’s listing edits are its strategy, in public.

  1. Oct 24, 2026

    • Integrations

      Integrations updated

      Integrations updated

      Shopify Admin

  2. Oct 8, 2026

    • Integrations

      Integrations updated

      Integrations updated

      Shopify Admin

  3. Sep 8, 2026

    • Integrations

      Integrations updated

      Integrations updated

      Shopify Admin

  4. Sep 7, 2026

    • Integrations

      Integrations updated

      Integrations updated

      Shopify Admin

  5. Sep 6, 2026

    • Integrations

      Integrations updated

      Integrations updated

      Shopify Admin

Follow PO Validator B2B

Its price moves, rewritten copy, new screenshots and the stores that install or drop it, in one email a week. Free, no account.

How PO Validator B2B sells itself on the App Store

The pitch, integrations and features merchants see before they install: the positioning a competitor is betting on.

“Blocks checkout without a valid PO number. Prevent invalid B2B orders before they reach your team.”

What it does

B2B merchants must attach a Purchase Order number to every order, but Shopify provides no native way to enforce this. Buyers skip the PO field or enter invalid data, causing fulfillment delays and ERP mismatches. PO Validator solves this with server-side… Read the full description

Screenshots

  • PO Validator checkout error for invalid PO number format
  • PO Validator: valid PO numbers required at B2B checkout
  • PO Validator admin: set required field, length & prefix
  • PO Validator admin: regex, character & error message rules

PO Validator B2B listing facts

Developer
byKlemm
Launched
June 8, 2026
Shopify rank
#278 in Checkout - Other
Languages
English, German, French
View on the Shopify App Store

Is this your app? Claim it free to see who is installing and leaving it.

Shopify stores using PO Validator B2B

Shoplist is watching Shopify storefronts for the first public install of PO Validator B2B.

How PO Validator B2B’s install base is moving

Shoplist re-crawls the same storefronts, so every store that adds PO Validator B2B, comes back to it or removes it shows up here. The store count also grows when Shoplist finds stores already running it; the breakdown keeps those apart from real installs.

Stores, last 28 days

0

0 now · 0 28 days earlier

Reach

0%

of the stores Shoplist tracks

Big-brand share

Not enough data: fewer than 150 of its stores have a known size

Where PO Validator B2B’s store count change came from

Real installs and removalsEstimated0 added · 0 came back · 0 removed
0

Stores adding and removing PO Validator B2B, by week

Week of Aug 31, 2026 · 0 added or came back · 0 removed · net 0 · estimatedWeek of Sep 7, 2026 · 0 added or came back · 0 removed · net 0 · estimatedWeek of Sep 14, 2026 · 0 added or came back · 0 removed · net 0 · estimatedWeek of Sep 21, 2026 · 0 added or came back · 0 removed · net 0 · estimatedWeek of Sep 28, 2026 · 0 added or came back · 0 removed · net 0 · estimatedWeek of Oct 5, 2026 · 0 added or came back · 0 removed · net 0 · estimatedWeek of Oct 12, 2026 · 0 added or came back · 0 removed · net 0 · estimatedWeek of Oct 19, 2026 · 0 added or came back · 0 removed · net 0 · estimatedWeek of Oct 26, 2026 · 0 added or came back · 0 removed · net 0 · estimated
Stores that added it or came backStores that removed itEstimated weeks
Week ofAdded or backRemovedNetNotes
Aug 31, 2026000Estimated
Sep 7, 2026000Estimated
Sep 14, 2026000Estimated
Sep 21, 2026000Estimated
Sep 28, 2026000Estimated
Oct 5, 2026000Estimated
Oct 12, 2026000Estimated
Oct 19, 2026000Estimated
Oct 26, 2026000Estimated

Compare PO Validator B2B

The apps in its App Store category, with the stores Shoplist detects on each and their listing ratings.

Alternatives to PO Validator B2B

Apps merchants weigh against PO Validator B2B, with their own detected stores and ratings.

Track these competitors

Follow the apps you compete with and decide which changes deserve action. See the competitor-monitoring workflow.

Seen on the storefront, not guessed

If Shoplist shows PO Validator B2B on a store, it’s there. Every count on this page traces to code found on a live storefront, re-checked on every crawl.

  1. Code-level

    detection on every store

    Found in the storefront’s own code

    Shoplist matches the scripts, app blocks and pixels PO Validator B2B loads on each live storefront. No surveys, no developer-reported numbers, no model guessing installs from review counts.

  2. last checked

    Re-checked, so the count stays current

    Shoplist keeps crawling the same storefronts. A store that uninstalls PO Validator B2B leaves the count on the next crawl, so you read today’s install base, not a high-water mark.

  3. Daily

    App Store listing reads

    The App Store, read every day

    Rank, reviews, pricing and every listing edit are captured daily, so a price change or a ranking slip shows up here the day it ships.

Two public sources, labelled on every section. Store data last checked .

Read the full methodology

Questions about PO Validator B2B

Straight answers from the same data as the rest of this page. The full store list answers the rest.

Alert me on first detections

Has Shoplist detected stores using PO Validator B2B yet?

Shoplist has not yet found reliable public storefront evidence for PO Validator B2B. The page tracks first merchant evidence as it appears.

What does first-adopter watch mean?

It means Shoplist is monitoring launch context, first storefront-detectable merchant evidence, pricing, and listing changes.

Can I get alerts when stores start using PO Validator B2B?

Yes. Create a watchlist to get alerted when Shoplist finds public merchant evidence for PO Validator B2B.

Keep watching PO Validator B2B.

Get alerted on first storefront installs, review spikes, pricing changes, and listing edits.

Alert me on first detectionsSee pricingFree plan available.