How To Fix QY309 - Total size of all material samples is greater than the lot size

QY309 - Overview

• Message type: E = Error

• Message class: QY - QM: Sample management

• Message number: 309

• Message text: Total size of all material samples is greater than the lot size

What causes this issue?

The total quantity of all primary samples calculated by the system is
greater than the inspection lot quantity.
This problem can only occur if:
The system uses several sample-drawing items in the sample-drawing
procedure to calculate the material samples.
The sum of the primary samples for <ZH>one</> sample-drawing item are
smaller than the lot quantity, but the sum of the primary samples for
<ZH>all</> sample-drawing items are greater than the lot quantity.
If the system finds only one sample-drawing item to calculate the
samples and it determines that the total quantity of the samples for the
sample-drawing item exceeds the lot quantity, it reduces the number of
samples to a single primary sample. The system defines the size of the
primary sample to match the inspection lot quantity.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Make sure a valid task list exists for the material. The task list must
have a sample-drawing procedure assigned to it, which has only one
applicable sample-drawing item.
If the <ZH>inspection lot was created automatically</>, you can use the
transaction to change an inspection lot to retrigger the inspection
sample and material sample calculation. You must select an appropriate
inspection plan for the inspection lot as described above.
If you are <ZH>creating the inspection lot manually</>, save the
inspection lot before you call up the function to change the inspection
lot as described in the item above (automatic inspection lot creation).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QY309 - Total size of all material samples is greater than the lot size ?

  The SAP error message QY309 indicates that the total size of all material samples exceeds the specified lot size during a quality inspection process. This error typically occurs in the context of quality management (QM) when you are trying to create or process inspection lots.
  
  Cause:
  
  Sample Size Configuration: The sample size defined for the inspection lot is larger than the total quantity of the lot itself. This can happen if the sampling procedure is set incorrectly or if the lot size is smaller than expected.
  Incorrect Lot Size: The lot size may have been defined incorrectly during the creation of the inspection lot.
  Sampling Procedure: The sampling procedure used may require a larger sample size than what is available in the lot.
  
  
  Solution:
  
  Review Sampling Procedure: Check the sampling procedure assigned to the inspection lot. Ensure that it is appropriate for the lot size and that it does not require an excessive sample size.
  Adjust Lot