SAP Knowledge Base Article - Preview

2598238 - WPF client error: Serial Number cannot be null when entering or scanning numbers quickly


  • Scan multiple barcodes values quickly into input field in this example the serial number field of the CycleCount screen.
  • Or from the input field enter the value and then press the "Enter Key" quickly/repeatedly.
  • The following error is seen: Serial Number cannot be null



  • SAP Mobile Platform 3.0 SDK SP16 PL 04
  • SAP Mobile Platform 3.0
  • SAP Work Manager WPF Clients


SAP CRM Service Manager all versions ; SAP Inventory Manager all versions ; SAP Mobile Platform 3.0 ; SAP Mobile Platform SDK 3.0 ; SAP Work Manager all versions


Edge scanner, SMP 3.0, bar code, barcode, Agentry,repeatedly , KBA , MOB-SYC-SAP , Syclo Mobility for SAP backend , MOB-SDK-AGC , SAP Mobile SDK Agentry Clients , Problem

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