Field help (CTR1PERCOD) 

Enter the pay extraction period for the contract. You can select a pay extraction period with the same legislation as the company the contract is linked to.

Pay extraction periods (or frequencies) are managed in the Extraction period function. An employee can move during the tax year from one extraction period to another, but this requires a new chrono contract to be created.

 The first day of the week set on the extraction period must be the same as the first day of the week set on the reference plan in theReference planningsfunction.