Official rule text
[IBR-149-OM] - Invoice transaction type (BTOM-001) cannot be Simplified Tax Invoice (01000000000000000000) if Invoice transaction type (BTOM-001) is Self-billed Invoice/credit note (00100000000000000000) or Summary invoice (00001000000000000000) or Export Invoice (00000010000000000000) or Import of services for RCM (00000000100000000000) or Profit margin invoice (00000000010000000000) or Profit Margin Self-Invoice (00000000001000000000) or Import of Goods (00000000000010000000).
What this means
A simplified tax invoice cannot also be marked as self-billed, a summary invoice, export, import of services, profit-margin, profit-margin self-invoice, or import of goods — but this invoice combines them.
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 identifiers & type
Whether the invoice's own core facts — its number, issue date, currency, UUID, and Oman-specific transaction-type marker — are present, correctly formatted, and internally consistent.
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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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