Square post, story, and carousel versions of a social media campaign are not just a change of measure. Reading order, text field, and visual in each format varies. The design brief should specify which formats to produce along with the main idea.
Separate auxiliary information with the main message
Set the campaign's one-sentence promise. History, product detail, and contact information should support that promise. More than one step can be described in Carousel; while in story, a shorter message may be required in limited space. Trying to preserve the entire text in any format can reduce readability.
Check the safe area on the actual broadcast screen
Application interfaces can change over time. Check in the broadcast preview that profile information, buttons, and other controls do not top the design. Do not rely on the frame in the design file alone. Make real phone checks, especially for small text and subtitles on the edges.
Test the template with a variety of content
A template running in the short title can be broken down in the long product name. Test with different photo rates, single and multi-product content, light and dark visuals. It should be understood that each post belongs to the same brand family instead of looking the same.
The main concept in the proposal is to separate the number of adaptations and the scope of editable templates. With graphic design delivery, account management, ad publishing, and moderation are not the same service. When these responsibilities become clear at first, the designer can more accurately plan when and under what conditions to use the file.