Troubleshooting
Correcting the billing address of an already-created order (Shopify)
How to use order metafields to correct the customer's address before sending to SdI/PEPPOL.
Generating a credit note without misaligning it from the original invoice
The correct procedure to create a credit note from a WooCommerce refund linked to an already-sent invoice.
How to delete an invoice generated by POP
Why there's no direct action to delete an invoice, and how to do it via the linked order.
I've run out of included credits/quota: what happens and how to check your status
What "quota exhausted" means, how to check your account status, and what to do to keep generating documents.
SEPA Direct Debit (SDD) payment: why the charge isn't immediate
Why an SDD payment activates the membership right away but the actual charge arrives a few days later.
The administrator receives error emails when an invoice isn't created
Why POP automatically sends error emails to the site admin when invoice generation/transmission fails.
The SDI invoice gets rejected: common causes and fixes
A quick checklist to understand why SDI rejects an invoice and how to fix it.
The Shopify invoice doesn't reflect an order edit
Why an already-generated PDF/XML may not update right after an order edit, and how to align it.