Official rule text
[IBR-081-OM] - Industrial Classification Code (BTOM-033) must be provided for each ITEM INFORMATION (IBG-31) except when Invoice transaction type (BTOM-001) is a simplified tax invoice (01000000000000000000) and/or import of goods (00000000000010000000) or import of service RCM (00000000100000000000) or profit margin self-invoice (00000000001000000000).
What this means
An invoice line is missing its industrial classification (ISIC) code. This is required on most invoices, but not on simplified tax invoices, imports of goods, imports of services, or profit-margin self-invoices.
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 — freeCodes & classifications
Whether codes on the invoice — item classification (HS, ISIC), Incoterms, unit codes, document type — are drawn from the exact code list Oman's rules require, not just any plausible value.
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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