ChatGPT User Guide: Full Workflow for Creating and Publishing Custom GPTs and Setting Permissions

If you want to package commonly used prompts, output styles, and fixed workflows into a reusable assistant, you can create a “Custom GPT” directly in ChatGPT. This ChatGPT user guide walks through the real interface step by step—from where to find the entry point and key configuration details to publishing and permission controls—so you don’t end up finishing it only to find you can’t search for it, can’t use it, or accidentally leak content.

Find the creation entry point in ChatGPT and make basic preparations

Open ChatGPT on the web, first confirm you’re logged into the same account, then check whether the left sidebar has entries related to “Explore” and “Create.” If you only see a list of GPTs but no create button, it’s usually because your account doesn’t have creation privileges enabled, or your region/organization policies restrict this feature. It’s recommended to log out and back in once in the same browser, then switch network environments to verify whether the missing entry point is due to access policies.

Before you start, preparing three things will make it smoother: a one-sentence description of your target scenario (e.g., “turn meeting recording minutes into action items”), a sample input and output, and boundaries that must not be breached (e.g., “do not output customer privacy, do not fabricate data sources”). These will be written directly into ChatGPT’s instruction area and determine stability.

Configure a Custom GPT: instructions, capabilities, and tone—three key things

After entering the creation page, prioritize clearly writing “who you are, what you do, and how you do it”: including the task scope, output structure, clarification questions to ask first, and refusal conditions. Many people only write “you are an expert,” and ChatGPT ends up going off topic; it’s more effective to write it as a process, such as “list key points first → then provide a template → finally provide a checklist.” When you want a fixed output format (heading hierarchy, table fields, word limit), you should also specify it explicitly in the instructions.

Only turn on the capability toggles you need: enable browsing/search only if you need to look things up, enable file analysis only if you need to process files, and enable image capabilities only if you need to generate images. Turning on too many can cause ChatGPT to “improvise” when unnecessary, reducing consistency. For tone settings, don’t use abstract words—replace them with actionable descriptions, such as “use short sentences, few adjectives, no more than 3 sentences per paragraph.”

Add a knowledge base and files: what you can include and how to do it more safely

If you want a Custom GPT to remember company terminology, product specifications, or writing guidelines over the long term, you can upload materials as knowledge files. It’s recommended to prioritize documents that are “publicly available or shareable internally,” and not upload sensitive data such as ID numbers, bank card details, or unredacted customer lists. Even if these are standard steps in a ChatGPT user guide, in real business scenarios you should put compliance first.

For file organization, don’t dump dozens of files all at once: compiling core rules into 1–3 “master guidelines,” then adding a small number of examples, will be more useful than a massive pile of fragments. After each guideline update, remember to go back into the Custom GPT and replace the old files—otherwise ChatGPT will keep responding based on the old version, creating the illusion of “I updated it, but it didn’t take effect.”

Publishing, sharing, and permission settings: make sure ChatGPT is only used by the right people

After saving, you’ll enter publishing settings, which generally offer options like “only me,” “anyone with the link,” and “publicly visible.” For internal team use, prioritize “only me” or “anyone with the link,” and clearly state the applicable scope in the description to prevent it from being used for unrelated tasks. Before going public, be sure to run three sets of tests: extreme inputs, sensitive questions, and your most commonly used real scenario, to confirm ChatGPT won’t output out-of-bounds content.

Ongoing maintenance is also critical: whenever you find it drifting off course, summarize that part of the conversation as a “counterexample + correct approach” and add it to the instruction area. When you need to take it offline, switch it to “only me” or delete it, and clean up the Custom GPT description as well to avoid others misusing it via old links. Done this way, your ChatGPT will become more stable the more you use it, rather than getting more chaotic the more you tweak it.