Official rule text
[IBR-150-OM] - If Invoice transaction type (BTOM-001) is Special Zone Supplies (00000000000001000000) , buyer country subdivision code (BTOM-026) and Seller country subdivision code (BTOM-024) MUST be provided using the codelist for Country Subdivision (CL-13-OM).
What this means
For an invoice marked as a special-zone supply, both the buyer's and the seller's Oman subdivision codes must be provided.
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
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