How To Fix ADS2KIPUPL_API_AL001 - Transmission Sequence Number &1 not next in sequence

SAP Error Message - Details

• Message type: E = Error

• Message class: ADS2KIPUPL_API_AL - Message Class for SPEC 2000 IP Upload API

• Message number: 001

• Message text: Transmission Sequence Number &1 not next in sequence

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ADS2KIPUPL_API_AL001 - Transmission Sequence Number &1 not next in sequence ?

  The SAP error message ADS2KIPUPL_API_AL001 indicates that there is an issue with the transmission sequence number in the context of the Application Data Service (ADS) or the Advanced Data Services (ADS) interface. This error typically arises when the sequence number of the data being transmitted does not match the expected sequence number, which can disrupt the data flow and processing.
  Cause:
  
  Out-of-Order Transmission: The most common cause of this error is that the data packets are being received out of order. Each packet has a sequence number, and if the system receives a packet with a sequence number that is not the next expected number, it will trigger this error.
  Network Issues: Network latency or interruptions can cause packets to arrive out of order.
  Duplicate Transmission: If a transmission is retried due to a previous failure, it may result in the same sequence number being sent again, which can also lead to this error.
  Configuration Issues: Incorrect configuration settings in the ADS or related systems can lead to sequence number mismatches.
  
  Solution:
  
  Check Transmission Order: Ensure that the data packets are being sent and received in the correct order. You may need to implement checks or logging to monitor the sequence numbers.
  Network Stability: Investigate the network for any issues that might be causing delays or packet loss. Improving network stability can help ensure that packets arrive in the correct order.
  Review Configuration: Check the configuration settings of the ADS and any related systems to ensure they are set up correctly. This includes verifying any parameters related to sequence numbers.
  Error Handling: Implement error handling mechanisms to manage out-of-order packets. This may involve buffering packets until the expected sequence number is received.
  Consult Documentation: Refer to SAP documentation or support resources for specific guidance related to your version of SAP and the ADS configuration.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Logs and Traces: Review system logs and traces to gather more information about the context in which the error occurred. This can provide insights into whether the issue is related to specific transactions or data sets.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found effective.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.