3532143 - Purchase Leave Error: [COE0027] Required Properties Missing in Payload

We encounter the following error message while processing purchase leave requests: [COE0027]Please add required properties in payload. Required property unit is missing. You can check which properties are required for an entity in Admin Center > OData API Data Dictionary or the entity metadata. 

SAP SuccessFactors Employee Central – Time Management

[COE0027]Please add required properties in payload. Required property unit is missing. You can check which properties are required for an entity in Admin Center > OData API Data Dictionary or the entity metadata, [COE0027]Please add required properties in payload, Required property unit is missing, You can check which properties are required for an entity in Admin Center, OData API Data Dictionary or the entity metadata, COE0027, Purchase Leave Error, Purchase Leave, Leave Error, Purchase Time error, Purchase Balance Error, Purchase Balance, Time Off, Leave, Time Management, Purchase Error, Purchase, OData API Data Dictionary, TimeAccountPurchase, Time Account Purchase Leave, Time Account, Account Purchase, Account Purchase Leave. , KBA , LOD-SF-EC-TIM-PYT , Payouts - Self Service, Admin, Termination , LOD-SF-EC-TIM , Time Off , LOD-SF-EC-TIM-UI , Team Absence Calender/ Workbench/ ESS UI's , Problem