Official rule text
[IBR-057-OM] - Invoice line period start date (IBT-134) and Invoice line period end date (IBT-135), when provided, must belong to the same calendar month where Invoice transaction type (BTOM-001) is a summary invoice (00001000000000000000).
What this means
On a summary invoice, if an invoice line states its own billing period, the start and end dates must fall within the same calendar month.
What to do
Share this rule id with whoever manages your invoicing software or IT — or ask TechMate to fix it for you (see below).
Check whether your invoice hits this rule — freeInvoice lines & pricing
Whether each line item — description, quantity, unit price, net price — is complete and its own arithmetic (price minus any line-level discount) is correct.
Other rules in this category
TechMate is a systems integrator, not an OTA-accredited Service Provider. We help you get ready and connect you to an accredited provider; final validation and acceptance always sit with that provider and the Tax Authority.
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