'>' is allowed as a post character in text markup.

org_mode_samples/object/text_markup/verbatim_with_equals_inside.org

@@ -0,0 +1 @@
+foo ==>bar=.

src/parser/org_macro.rs

@@ -10,6 +10,7 @@ use nom::multi::separated_list0;
 
 use super::org_source::OrgSource;
 use super::Context;
+use crate::error::CustomError;
 use crate::error::Res;
 use crate::parser::object::OrgMacro;
 use crate::parser::parser_with_context::parser_with_context;
@@ -86,6 +87,11 @@ fn org_macro_arg<'r, 's>(
         }
         if next_char == '\\' {
             escaping = true;
+            if peek(tag::<_, _, CustomError<_>>(")"))(new_remaining).is_ok() {
+                // Special case for backslash at the end of a macro
+                remaining = new_remaining;
+                break;
+            }
         }
         if next_char == ',' || next_char == ')' {
             break;

src/parser/text_markup.rs

@@ -277,7 +277,7 @@ pub fn pre<'r, 's>(_context: Context<'r, 's>, input: OrgSource<'s>) -> Res<OrgSo
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
 pub fn post<'r, 's>(_context: Context<'r, 's>, input: OrgSource<'s>) -> Res<OrgSource<'s>, ()> {
-    let (remaining, _) = alt((recognize(one_of(" \r\n\t-.,;:!?')}[\">")), line_ending))(input)?;
+    let (remaining, _) = alt((recognize(one_of(" \r\n\t-.,;:!?')}[\"")), line_ending))(input)?;
     Ok((remaining, ()))
 }