esx_multicharacter

Step 1

Open file esx_multicharacter/server/main.lua and find characters[id] = { (inside function SetupCharacters)

Paste the following code above it.

if GetResourceState("rcore_clothing") == "started" then
    if v then
      v.skin = json.encode(exports["rcore_clothing"]:getSkinByIdentifier(v.identifier))
    elseif result and i and result[i] then
      result[i].skin = json.encode(exports["rcore_clothing"]:getSkinByIdentifier(result[i].identifier))
    else
      print("ERROR: Unknown version of multichar")
    end
end

Now it should look like the following image:

Step 2

Open file esx_multicharacter/client/main.lua and find TriggerEvent("skinchanger:loadSkin", skin) (inside function SetupCharacter)

Replace the line with the following code:

if Characters[index].skin then
    exports["rcore_clothing"]:setPlayerSkin(skin)
else
    TriggerEvent("skinchanger:loadSkin", skin)
end

Now it should look like the following image:

Step 3

In the same file as step 2 (esx_multicharacter/client/main.lua), find TriggerEvent("skinchanger:loadSkin", Characters[index].skin) (inside function SetupCharacter)

Replace the line with the following code:

exports["rcore_clothing"]:setPlayerSkin(Characters[index].skin)

Now it should look like the following image:

Step 4

Open file esx_multicharacter/server/main.lua and find local DB_TABLES.

Now add these entries to the DB_TABLES variable:

["rcore_clothing_current"] = "identifier",
["rcore_clothing_purchased"] = "identifier",
["rcore_clothing_outfits"] = "identifier",

Now it should look something like this (don't copy this, you may have other existing tables defined, this is just an example):

local DB_TABLES = { users = "identifier", ["rcore_clothing_current"] = "identifier", ["rcore_clothing_purchased"] = "identifier", ["rcore_clothing_outfits"] = "identifier", }