The timing and frequency of your follow-up depends on several factors, such as the journal's policies, the type and stage of your paper, and the expected turnaround time. Generally, you should adhere to the guidelines and instructions provided by the journal when you submit your paper. Some journals may inform you of the expected time frame for the initial screening, the peer review, the editorial decision, and the production process. Additionally, some journals may send automated updates or notifications when your paper reaches a certain milestone or status. It is important to respect these timelines and avoid sending unnecessary or premature follow-up emails that may annoy or overwhelm the journal staff. However, there are situations where it may be necessary or desirable to follow up with editors or reviewers. For example, if you have not received any confirmation or acknowledgment of your submission within a reasonable period (usually a few days or a week), if you have not received any update or feedback on your paper within the expected or average time frame (usually a few weeks or months depending on the journal and field), if you have received an invitation to revise and resubmit your paper and need clarification about reviewers' comments or editor instructions, if you have submitted a revised manuscript and cover letter and want to confirm they have been received and processed correctly, or if you have received an acceptance letter and need information about next steps or publication schedule.