This error code indicates that the values for schedule.start_at and schedule.end_at are missing in one of your Amazon catalogue sections. The affected sections are purchasable_offer, purchasable_offer_fba, purchasable_offer_mfn_b2b and purchasable_offer_fba_b2b.

Message: Based on the data from '[offers#?.prices#?.price_type]', the field '"schedule.end_at"' for the attribute 'purchasable_offer' does not have enough values. The required minimum is the value '1'. Please provide a valid value.

When does this error occur?

The error code 990022 appears when you have stored a data source for the offer price (e.g. purchasable_offer.discounted_price) in one of the catalogue sections mentioned above, but the fields for the start and end time of the offer (i.e. schedule.start_at and schedule.end_at) are empty.

How can I fix this error?

You have two options to fix this error:

1. Remove the data source for the offer price in the affected section (e.g. purchasable_offer_mfn_b2b) if the offer price is no longer needed.
2. Provide a data source for schedule.start_at and schedule.end_at to specify a valid validity period for the stored offer price.