Significant edits and learning phase

Every edit you make (during the learning phase or after it) has some effect on delivery, but not every edit causes the ad set to re-enter the learning phase. Only a significant edit causes an ad set to re-enter the learning phase.

The following are considered significant edits:

• Any change to targeting
• Any change to ad creative
• Any change to optimisation event
• Adding a new ad to your ad set
• Pausing your ad set for seven days or longer (the ad set re-enters the learning phase once you unpause the ad set)
• Changing bid strategy

  Note: When using campaign budget optimisation, switching your campaign bid strategy might cause multiple ad sets within the campaign to re-enter the learning phase.

A change to any of the following areas may or may not be significant, depending on the magnitude of the change:

• Ad set spending limit amount
• Bid control, cost control or ROAS control amount
• Budget amount

  Note: When using campaign budget optimisation, adjusting your campaign budget might cause multiple ad sets within the campaign to re-enter the learning phase.

For example, if you increase your budget from USD 100 to USD 101, that isn't likely to cause one or more ad sets to re-enter the learning phase. However, if you change your budget from USD 100 to USD 1000, one or more ad sets may re-enter the learning phase.

• How long does the initial "learning" process typically take for ad sets with campaign budget optimisation? It'll take the same time as ad set budgets.
• Will campaign budget optimisation cause ad sets to re-enter the learning phase as it distributes budget? No, ad sets within the campaign won't re-enter the learning phase as budget is distributed.
• Will making a significant edit to one ad set (meaning that the edit is made at the ad set level) cause other ad sets within the same campaign to re-enter the learning phase? No, as long as the edit is made at the ad set level, other ad sets within the same campaign won't re-enter the learning phase.
• Will adding a new ad set to the campaign cause the rest of the ad sets to re-enter the learning phase? No, adding an ad set to a campaign with campaign budget optimisation won't cause other ad sets within the same campaign to re-enter the learning phase.
• Is changing my disclaimer for ads about social issues, elections, or politics considered a significant edit? Yes, changing the disclaimer you place on the ad is considered a significant edit.