Official rule text
[IBR-002-OM] - The unique identifier (“UUID”) (BTOM-002) must be provided on the invoice and MUST be a valid UUID version 5.
What this means
The invoice is missing its unique ID (UUID), or the UUID is not a valid 'version 5' UUID. Oman requires every invoice to carry this system-generated identifier - it is normally produced automatically by invoicing software, not typed by hand.
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.
Other rules in this category
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