1914346 - ID of Documents are Created Out of Order or there are Gaps in Document IDs

Some documents (for example Sales Orders or Contracts or Purchase Order) have document IDs that do not reflect the chronological order of creation.

You may also see gaps in document numbering, even if you have not deleted any document.

SAP Business ByDesign

Sequence; Sales Order ID; Gap in Purchase Order; Good and Service Receipt , KBA , document number sequence , sales orders , numbering , AP-SLO , Sales Order Processing , AP-SLO-SO , Sales Order , SRD-CRM-ORD , Orders & Contracts , AP-CCP-CC , Customer Contract , Product Enhancement