The rejection process is typical of the publication cycle. Even good manuscripts can be rejected due to the following considerations:

Q & A Forum

Journal Selection & Submission

Q: What if my paper gets rejected?

The rejection process is typical of the publication cycle. Even good manuscripts can be rejected due to the following considerations:
Mismatch in scope
Disagreements among reviewers
Journal space limitations
Strategy after rejection:
Analyze reviewer comments and decision letters.
Edit the manuscript in light of helpful criticism.
Choose a journal again that has a better fit, scope, and processing time.
Don’t resubmit right away without making significant changes.